Fig. 2From: BrkAutoDisplay: functional display of multiple exogenous proteins on the surface of Escherichia coli by using BrkA autotransporterSurface display of GFP by BrkAutoDisplay. a Cells transformed with empty pBAD, pBAD-GFP and pET22b(+)-GFP were observed using fluorescence microscope. b Trypsin accessibility assay of the displayed GFPBack to article page